Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in $$ \sqrt{s} $$ = 13 TeV pp collisions with the ATLAS detector

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Oct 2020Embargo end date: 24 Jan 2021 Austria, Netherlands, Belarus, Germany, Turkey, Turkey, United Kingdom, Italy, Spain, China (People's Republic of), Italy, Italy, Norway, Italy, Chile, Denmark, Italy, United Kingdom, Australia, Australia, Turkey, Portugal, Switzerland, Italy, France, Norway, Germany, United Kingdom, Italy, Italy, United Kingdom, Italy, United States, Italy, South Africa, Italy, Italy, China (People's Republic of), United States, Italy, Chile, Italy, Italy, Netherlands, China (People's Republic of), Netherlands, Poland, Germany, Spain, Netherlands English Publisher:Springer Science and Business Media LLCJournal:Journal of High Energy Physics, volume 2,020 (eissn: 1029-8479,

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Authors: Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A.; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; +193 Authors

Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A.; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; AbouZeid, O. S.; Abraham, N. L.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Acharya, B. S.; Achkar, B.; Adachi, S.; Adam, L.; Bourdarios, Adam C.; Adamczyk, L.; Adamek, L.; Adelman, J.; Adersberger, M.; Adiguzel, A.; Adorni, S.; Adye, T.; Affolder, A. A.; Afik, Y.; Agapopoulou, C.; Agaras, M. N.; Aggarwal, A.; Agheorghiesei, C.; Aguilar-Saavedra, J. A.; Ahmadov, F.; Ahmed, W. S.; Ai, X.; Aielli, G.; Akatsuka, S.; Akesson, T. P. A.; Akilli, E.; Akimov, A. V.; Al Khoury, K.; Alberghi, G. L.; Albert, J.; Alconada Verzini, M. J.; Alderweireldt, S.; Aleksa, M.; Aleks; rov, I. N.; Alexa, C.; Alex; re, D.; Alexopoulos, T.; Alfonsi, A.; Alfonsi, F.; Alhroob, M.; Ali, B.; Alimonti, G.; Alison, J.; Alkire, S. P.; Allaire, C.; Allbrooke, B. M. M.; Allen, B. W.; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Alshehri, A. A.; Alvarez Estevez, M.; Alvarez Piqueras, D.; Alviggi, M. G.; Amaral Coutinho, Y.; Ambler, A.; Ambroz, L.; Amelung, C.; Amidei, D.; Amor Dos Santos, S. P.; Amoroso, S.; Amrouche, C. S.; An, F.; Anastopoulos, C.; Andari, N.; Andeen, T.; Anders, C. F.; Anders, J. K.; Andreazza, A.; Andrei, V.; Anelli, C. R.; Angelidakis, S.; Angerami, A.; Anisenkov, A. V.; Annovi, A.; Antel, C.; Anthony, M. T.; Antonelli, M.; Antrim, D. J. A.; Anulli, F.; Aoki, M.; Aparisi Pozo, J. A.; Aperio Bella, L.; Arabidze, G.; Araque, J. P.; Araujo Ferraz, V.; Araujo Pereira, R.; Arcangeletti, C.; Arce, A. T. H.; Arduh, F. A.; Arguin, J-F.; Argyropoulos, S.; Arling, J. -H.; Armbruster, A. J.; Armstrong, A.; Arnaez, O.; Arnold, H.; Arrubarrena Tame, Z. P.; Artamonov, A.; Artoni, G.; Artz, S.; Asai, S.; Asbah, N.; Asimakopoulou, E. M.; Asquith, L.; Assahsah, J.; Assamagan, K.; Astalos, R.; Atkin, R. J.; Atkinson, M.; Atlay, N. B.; Atmani, H.; Augsten, K.; Avolio, G.; Avramidou, R.; Ayoub, M. K.; Azoulay, A. M.; Azuelos, G.; Bachacou, H.; Bachas, K.; Backes, M.; Backman, F.; Bagnaia, P.; Bahmani, M.; Bahrasemani, H.; Bailey, A. J.; Bailey, V. R.; Baines, J. T.; Bajic, M.; Bakalis, C.; Baker, O. K.; Bakker, P. J.; Bakshi Gupta, D.; Balaji, S.; Baldin, E. M.; Balek, P.; Balli, F.; Balunas, W. K.; Balz, J.; Banas, E.; B; yopadhyay, A.; Banerjee, Sw.; Bannoura, A. A. E.; Barak, L.; Barbe, W. M.; Barberio, E. L.; Barberis, D.; Barbero, M.; Barbour, G.; Barillari, T.; Barisits, M-S.; Barkeloo, J.; Barklow, T.; Barnea, R.; Barnes, S. L.; Barnett, B. M.; Barnett, R. M.; Barnovska-Blenessy, Z.; Baroncelli, A.; Barone, G.; Barr, A. J.; Navarro, Barranco L.; Barreiro, F.; da Costa, J. Barreiro Guimaraes; Barsov, S.; Bartoldus, R.; Bartolini, G.; Barton, A. E.; Bartos, P.; Basalaev, A.; Bassalat, A.; Basso, M. J.; Bates, R. L.; Batlamous, S.; Batley, J. R.; Batool, B.; Battaglia, M.; Bauce, M.; Bauer, F.; Bauer, K. T.; Bawa, H. S.; Beacham, J. B.; Beau, T.;

doi: 10.1007/jhep10(2020)112 , 10.17863/cam.63745 , 10.17863/cam.59583 , 10.48550/arxiv.2006.05872 , 10.3204/pubdb-2020-04265 , 10.17863/cam.58916 , 10.17863/cam.76987 , 10.7302/5024

arXiv: 2006.05872

Search for pairs of scalar leptoquarks decaying into quarks and electrons or muons in $$ \sqrt{s} $$ = 13 TeV pp collisions with the ATLAS detector

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Abstract

Abstract A search for new-physics resonances decaying into a lepton and a jet performed by the ATLAS experiment is presented. Scalar leptoquarks pair-produced in pp collisions at $$ \sqrt{s} $$ s = 13 TeV at the Large Hadron Collider are considered using an integrated luminosity of 139 fb−1, corresponding to the full Run 2 dataset. They are searched for in events with two electrons or two muons and two or more jets, including jets identified as arising from the fragmentation of c- or b-quarks. The observed yield in each channel is consistent with the Standard Model background expectation. Leptoquarks with masses below 1.8 TeV and 1.7 TeV are excluded in the electron and muon channels, respectively, assuming a branching ratio into a charged lepton and a quark of 100%, with minimal dependence on the quark flavour. Upper limits on the aforementioned branching ratio are also given as a function of the leptoquark mass.

Countries

Austria, Netherlands, Belarus, Germany, Turkey, Turkey, United Kingdom, Italy, Spain, China (People's Republic of), Italy, Italy, Norway, Italy, Chile, Denmark, Italy, United Kingdom, Australia, Australia, Turkey, Portugal, Switzerland, Italy, France, Norway, Germany, United Kingdom, Italy, Italy, United Kingdom, Italy, United States, Italy, South Africa, Italy, Italy, China (People's Republic of), United States, Italy, Chile, Italy, Italy, Netherlands, China (People's Republic of), Netherlands, Poland, Germany, Spain, Netherlands

Related Organizations

Spanish National Research Council
Spain
University of Granada
Spain
National Institute for Nuclear Physics
Italy
University of Cambridge
United Kingdom
National University of La Plata
Argentina

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Keywords

Leptones (Física nuclear), 13000 GeV-cms, QC770-798, Atomic, S056EGT, Particle and Plasma Physics, Hadron-Hadron scattering (experiments), jet: charm, fragmentation, info:eu-repo/classification/ddc/530, Particle physics, VDP::Kjerne- og elementærpartikkelfysikk: 431, mass dependence, Settore FIS/01 - FISICA SPERIMENTALE, Nuclear and plasma physics, muon: pair production, CERN LHC Coll, Particle and high energy physics, Mathematical physics, Physical Sciences, Resonance: production, Mass dependence, leptoquark: pair production, jet: bottom, 51 Physical Sciences, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], New physics: search for, Beyond Standard Model; Exotics; Hadron-Hadron scattering (experiments); Particle and resonance production, High Energy Physics, final state: ((n)jet dilepton), Quark: flavor, P p: colliding beams, 500, Molecular, Chorros (Física nuclear), Hadron-Hadron scattering, Muon: pair production, Experimental High Energy Physics, Beyond Standard Model, p p: colliding beams, Exotics, :Kjerne- og elementærpartikkelfysikk: 431 [VDP], Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni, branching ratio: upper limit, Jet: bottom, 510, High Energy Physics - Experiment, electron: pair production, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Quasar, Mathematical Physics, Hadron-hadron collisions ; leptoquarks, Quantum Physics, new physics: search for, leptoquark: scalar, Particle and High Energy Physics, ATLAS, Nuclear and Plasma Physics, Nuclear & Particles Physics, :Nuclear and elementary particle physics: 431 [VDP], P p: scattering, Hadron-Hadron Scattering (Experiments), VDP::Nuclear and elementary particle physics: 431, Electron: pair production, Leptoquark: branching ratio, 5107 Particle and High Energy Physics, Exotic, Leptoquark: scalar, Regular Article - Experimental Physics, Jet: charm, FOS: Physical sciences, Particle and resonance production, 530, Fragmentation, Nuclear and particle physics. Atomic energy. Radioactivity, Nuclear, Branching ratio: upper limit, Experimental results, High energy physics, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, Leptoquark: pair production, hep-ex, quark: flavor, background, Particle and Resonance Production, Matemática física y química, Física, Leptoquark: mass: lower limit, leptoquark: mass: lower limit, Background, Final state: ((n)jet dilepton), 5106 Nuclear and Plasma Physics, leptoquark: branching ratio, 500.2, resonance: production, experimental results

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